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• Trace not working in a .NET DLL loaded from VB6 EXE

  - by Luis

  Hello I have a .NET DLL that writes to the Trace. But seems that when I call my DLL from a VB6 EXE the trace is not working. I have created an myApp.config file in the EXE folder with the trace configuration, but this does not solves the issue. I've also tried creating the Trace objects in code,but doesn't work: Dim _traceSrc as TraceSource= New TraceSource("myTraceSorce") Dim flListener As FileLogTraceListener = New FileLogTraceListener("myFileLogTraceListener") Dim tSwitch As SourceSwitch = New SourceSwitch("mySwitch") tSwitch.Level = _logLevel If I call my DLL from a .NET EXE it works, even if I dont have the app.config in the EXE folder, becusase I set it in code if the config is not found. Thanks

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• How to Enable ActiveX in Chrome?

  - by Jeremiah Morrill

  I read that early builds of Chrome supported ActiveX, but was later restricted to certain MIME types (for support for say Windows Media Player). I then read Google was going to enable ActiveX strictly for the Korean market. How do I (re)enable this in Chrome? Our web based product relies on ActiveX controls from 3rd parties to play custom video. This limits us to IE. We'd love to support Chrome also, but find it impossible w/o ActiveX support.

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• How to send mail from ASP.NET with IIS6 SMTP in a dedicated server?

  - by Julio César

  Hi. I'm trying to configure a dedicated server that runs ASP.NET to send mail through the local IIS SMTP server but mail is getting stuck in the Queue folder and doesn't get delivered. I'm using this code in an .aspx page to test: <%@ Page Language="C#" AutoEventWireup="true" %> <% new System.Net.Mail.SmtpClient("localhost").Send("info@thedomain.com", "jcarrascal@gmail.com", "testing...", "Hello, world.com"); %> Then, I added the following to the Web.config file: <system.net> <mailSettings> <smtp> <network host="localhost"/> </smtp> </mailSettings> </system.net> In the IIS Manager I've changed the following in the properties of the "Default SMTP Virtual Server". General: [X] Enable Logging Access / Authentication: [X] Windows Integrated Authentication Access / Relay Restrictions: (o) Only the list below, Granted 127.0.0.1 Delivery / Advanced: Fully qualified domain name = thedomain.com Finally, I run the SMTPDiag.exe tool like this: C:\>smtpdiag.exe info@thedomain.com jcarrascal@gmail.com Searching for Exchange external DNS settings. Computer name is THEDOMAIN. Failed to connect to the domain controller. Error: 8007054b Checking SOA for gmail.com. Checking external DNS servers. Checking internal DNS servers. SOA serial number match: Passed. Checking local domain records. Checking MX records using TCP: thedomain.com. Checking MX records using UDP: thedomain.com. Both TCP and UDP queries succeeded. Local DNS test passed. Checking remote domain records. Checking MX records using TCP: gmail.com. Checking MX records using UDP: gmail.com. Both TCP and UDP queries succeeded. Remote DNS test passed. Checking MX servers listed for jcarrascal@gmail.com. Connecting to gmail-smtp-in.l.google.com [209.85.199.27] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to gmail-smtp-in.l.google.com. Connecting to gmail-smtp-in.l.google.com [209.85.199.114] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to gmail-smtp-in.l.google.com. Connecting to alt2.gmail-smtp-in.l.google.com [209.85.135.27] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to alt2.gmail-smtp-in.l.google.com. Connecting to alt2.gmail-smtp-in.l.google.com [209.85.135.114] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to alt2.gmail-smtp-in.l.google.com. Connecting to alt1.gmail-smtp-in.l.google.com [209.85.133.27] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to alt1.gmail-smtp-in.l.google.com. Connecting to alt2.gmail-smtp-in.l.google.com [74.125.79.27] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to alt2.gmail-smtp-in.l.google.com. Connecting to alt2.gmail-smtp-in.l.google.com [74.125.79.114] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to alt2.gmail-smtp-in.l.google.com. Connecting to alt1.gmail-smtp-in.l.google.com [209.85.133.114] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to alt1.gmail-smtp-in.l.google.com. Connecting to gsmtp183.google.com [64.233.183.27] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to gsmtp183.google.com. Connecting to gsmtp147.google.com [209.85.147.27] on port 25. Connecting to the server failed. Error: 10051 Failed to submit mail to gsmtp147.google.com. I'm using ASP.NET 2.0, Windows 2003 Server and the IIS that comes with it. Can you tell me what else to change to fix the problem? Thanks @mattlant This is a dedicated server that's why I'm installing the SMTP manually. EDIT: I use exchange so its a little different, but its called a smart host in exchange, but in plain SMTP service config i think its called something else. Cant remember exactly the setting name. Thank you for pointing me at the Smart host field. Mail is getting delivered now. In the Default SMTP Virtual Server properties, the Delivery tab, click Advanced and fill the "Smart host" field with the address that your provider gives you. In my case (GoDaddy) it was k2smtpout.secureserver.net. More info here: http://help.godaddy.com/article/1283

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• How to properly clean up Excel interop objects in C#

  - by HAdes

  I'm using the Excel interop in C# (ApplicationClass) and have placed the following code in my finally clause: while (System.Runtime.InteropServices.Marshal.ReleaseComObject(excelSheet) != 0) { } excelSheet = null; GC.Collect(); GC.WaitForPendingFinalizers(); Although, this kind of works the Excel.exe process is still in the background even after I close Excel. It is only released once my application is manually closed. Anyone realize what I am doing wrong, or has an alternative to ensure interop objects are properly disposed of. Thanks.

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• Fastest way to access VB6 String in C#

  - by Simon Woods

  Hi I am using COMInterop. I have a call in VB6 which returns a string of roughly 13000 chars. If I execute the call in pure VB6 it takes about 800ms to execute. If I execute it via c# and COMInterop it takes about 8 seconds. I'm assuming the delay is caused by marshalling. If I am correct about marshalling, I'd be grateful if someone could suggest the fastest way I can get this into C#. e.g. Would it be better to a) expose it as a byte array b) provide a byref string param into the VB6 layer I would appreciate some sample code as well. I tried the Marshal.PtrToStringAuto(Marshal.ReadIntPtr(myCOMObject.GetString, 0) to no avail Many thx S

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• Why exception occured at LoadTypeLibEx System.ArgumentException: Value does not fall within the exp

  - by Usman

  Hello, I am loading type library in C++/CLI. In C# its loading successfully but it's giving again and again following exception in managed C++/CLI. exception occured at LoadTypeLibEx System.ArgumentException: Value does not fall within the expected range at LoadTypeLib(String strTypeLibName, ITypeLi b typeLib) Here's a PInvoke Signature: [DllImport("oleaut32.dll", CharSet = CharSet::Unicode, PreserveSig = false)] static void LoadTypeLib(String^ strTypeLibName,[MarshalAs(UnmanagedType::Interface)] [Out] System::Runtime::InteropServices::ComTypes::ITypeLib^ typeLib); ITypeLib^ oTypeLib; and call LoadtypeLib(TLB,oTypeLib); I am stuck here..kindly give me way around to get rid of this exception Regards Usman

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• midl.exe cannot load mscorlib.tlb

  - by Akash

  I'm trying to use midl to turn an idl file into a tlb. However, when I try I get this warning: warning MIDL2015: failed to load tlb in importlib : mscorlib.tlb and I then get a subsequent error: error MIDL2337 : unsatisfied forward declaration : _Object..... I'm certain that the error is due to the first warning. I've tried the same command on a different machine and it succeeds, so I know that the idl file is correct. I've tried uninstalling the .NET framework and reinstalling it in the hope that that would fix things, but it had no effect. So my question is, what do I need to fix on my machine to allow midl to locate mscorlib.tlb once more?

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• How do read/interact with an old ActiveX SSUltraGrid using UIAutomation

  - by Nigel Thorne

  I am investigating automated testing of an old Win32 application that used ActiveX controls. I am spiking use White (from Thougthworks) that uses Microsoft UIAutomation. I can find the AutomationElement related to the control, but how do I interact with it? Spy++ sees the grid control as a single window, so I can't talk to rows, columns, or cells directly. How do I talk to the SSUltraGrid control from my test code? Cheers Nigel

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• More efficient way to find media item in WMP media library?

  - by RoseOfJericho

  Hello, all. I am messing around with the WMPLib component provided by Windows Media Player 12 (wmp.dll) in VB.NET with .NET Framework 3.5 SP1. I am trying to retrieve a media item from my media library based on its name (assuming there are no duplicate names). At the moment, I'm grabbing the entire media library, and looping through every media item, and quitting the loop when I've found the correct media item. This works well (except for when a media item with that name cannot be found), but I was hoping there was a more efficient way of doing this. Here is my code so far: Public Class WMPTest Private myWMP As WMPLib.IWMPCore Private myMediaCollection As WMPLib.IWMPMediaCollection Private myTrack As WMPLib.IWMPMedia Private allTracks As WMPLib.IWMPPlaylist Public Sub New() ' This call is required by the Windows Form Designer. InitializeComponent() ' Add any initialization after the InitializeComponent() call. myWMP = New WMPLib.WindowsMediaPlayer myMediaCollection = myWMP.mediaCollection allTracks = myMediaCollection.getAll Dim theTrack As WMPLib.IWMPMedia = findTrack("Yellow Submarine") MessageBox.Show(theTrack.name) End Sub Public Function findTrack(ByVal strTrackName As String) As WMPLib.IWMPMedia For i As Integer = 0 To (allTracks.count - 1) If allTracks.Item(i).name = strTrackName Then myTrack = allTracks.Item(i) Exit For End If Next 'myTrack is now the track that we wanted to retrieve Return myTrack End Function End Class So what I really want is a way to optimize findTrack() to do its thing without looping through the entire media library (which could be huge). Anyone have a clue?

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• Which version of MSXML should I use?

  - by Cheeso

  Seems like this would be a common question, though I could not find it on SO. Which version of MSXML should I use in my applications, and more importantly, how should I decide? There is MSXML3, 4, 5 and 6. I recently posted some code in calling-wcf-service-by-vbscript that used MSXML v4. AnthonyWJones posted that I shouldn't use 4, but instead 3 or 6, but probably 3. Certainly not v5! Why? I'd like to know more about the criteria for selecting the version of MSXML to use in my apps. Bonus question: Does anyone have a summary of the differences between the various versions of MSXML over time? Summary so far: MSXML6 Should be first choice. was released in 2006, and includes perf and compliance fixes. Use this if you can. It's good. There are no merge modules; to bundle the MSXML6 runtime with your app, MS suggests packaging the MSXML6 msi file. MSXML6 is an upgrade from MSXML3/4 but does not replace them, because it discontinues some features. You can get the MSI here. MSXML3 Second choice. Most widely deployed version. Originally shipped in March 2000. Actively maintained, no new features. Currently supported, if you are on SP5 (shipped in 2005) or later. SP7 is current (also from 2005). MSXML5 was released only as part of MS-Office. Currently supported by Microsoft, but only as part of Office, not for building apps. Don't build apps that depend on MSXML5: Verboten. MSXML4 originally shipped? Currently in "maintenance mode". Microsoft is encouraging people to move off MSXML4 to MSXML6. Currently supported if you are on MSXML4SP2 or later, which shipped in 2003. download MSXML4SP2 here. Can be redisributed. Using the right version of MSXML in Internet Explorer is a good entry on the blog from Microsoft's xmlteam.

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• Excel Interop: Range.FormatConditions.Add throws MissingMethodException

  - by Zach Johnson

  I am writing an application which uses the Microsoft.Office.Interop.Excel assembly to export/import data from Excel spreadsheets. Everything was going fine (except for 1 based indexing and all those optional parameters!), until I tried to use conditional formatting. When I call Range.FormatConditions.Add I get a MissingMethodException telling me that no such method exists. This happens in both Vista and XP. Here's an example of the code that generates the exception: //1. Add a reference to Microsoft.Office.Interop.Excel (version 11.0.0.0) //2. Compile and run the following code: using Microsoft.Office.Interop.Excel; class Program { static void Main(string[] args) { Application app = new Application(); Workbook workbook = app.Workbooks[1]; Worksheet worksheet = (Worksheet)workbook.Worksheets[1]; Range range = worksheet.get_Range("A1", "A5"); FormatCondition condition = range.FormatConditions.Add( XlFormatConditionType.xlCellValue, XlFormatConditionOperator.xlBetween, 100, 200); } }

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• python win32com EXCEL data input error

  - by Rafal

  Welcome, I'm exporting results of my script into Excel spreadsheet. Everything works fine, I put big sets of data into SpreadSheet, but sometimes an error occurs: File "C:\Python26\lib\site-packages\win32com\client\dynamic.py", line 550, in __setattr__ self._oleobj_.Invoke(entry.dispid, 0, invoke_type, 0, value) pywintypes.com_error: (-2147352567, 'Exception.', (0, None, None, None, 0, -2146777998), None)*** I suppose It's not a problem of input data format. I put several different types of data strings, ints, floats, lists and it works fine. When I run the sript for the second time it works fine - no error. What's going on? PS. This is code that generates error, what's strange is that the error doesn't occur always. Say 30% of runs results in an error. : import win32com.client def Generate_Excel_Report(): Excel=win32com.client.Dispatch("Excel.Application") Excel.Workbooks.Add(1) Cells=Excel.ActiveWorkBook.ActiveSheet.Cells for i in range(100): Row=int(35+i) for j in range(10): Cells(int(Row),int(5+j)).Value="string" for i in range(100): Row=int(135+i) for j in range(10): Cells(int(Row),int(5+j)).Value=32.32 #float Generate_Excel_Report() The strangest for me is that when I run the script with the same code, the same input many times, then sometimes an error occurs, sometimes not. Thanks in advance for any help

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• Worksheet.Unprotect - Office Interop - Difference between 2003 and 2007

  - by sdmcnitt

  I have a .NET winforms app that automates Excel and checks for a worksheet password. The requirements are to be able to detect 1) that the protection is turned off 2) that the password is removed (protected but there is no password) 3) that the password matches the correct password from a database To meet the second requirement the program calls the Worksheet.Unprotect command with a null string, capturing the error. If error as expected, the 3rd check is made. If no error, then the Unprotect worked without a password == password was removed. The code sample below has these checks. The application can do this fine with Office 2003. I have since had my dev machine updated to Office 2007 and it no longer works as it did. When I call the Worksheet.Unprotect, Excel prompts for the password! I need to know how this should be accomplished in the new version of Excel or if there is a way to reference the old PIA. No matter what if I set a reference to Excel 11 it is replaced with the PIA for 12 in the GAC. 'return true if unprotect of worksheet does not generate an error 'all other errors will bubble up 'return false if specific error is "Password is invalid..." Try 'detect unprotected or no password If oWorksheet.ProtectContents Then 'try with no passsword and expect an error 'if no error then raise exception Dim blnRaiseException As Boolean = True Try 'oWorksheet.Unprotect(vbNullString) oWorksheet.Unprotect() Catch ex As Exception blnRaiseException = False End Try If blnRaiseException Then Throw New ExcelSheetNoPasswordException End If oWorksheet.Unprotect(strPwd) 'no error so if we get here -- success fnCheckWorksheetPwd = True 'leave as it was -- this may still cause workbook to think it is changed oWorksheet.Protect(strPwd) Else Throw New ExcelSheetNotProtectedException End If Catch COMex As System.Runtime.InteropServices.COMException 'handle error code -2146827284 If COMex.ErrorCode = -2146827284 Then 'this is the error we're looking for Else Throw End If Catch ex As Exception Throw End Try

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• import txt files using excel interop in C# (QueryTables.Add)

  - by kite

  Hi all, I am trying to insert text files into excel cell using Querytables.Add; no error, but the worksheet is empty. except for the single cell manipulation using Value2 property. I already using macro to record the object used. Can you help me on this(I am using vs2008, C# , excel 2003 and 2007; both shown empty cell). Below is my code; thanks for your help Application application = new ApplicationClass(); try { object misValue = Missing.Value; wbDoc = application.Workbooks.Open(flnmDoc, misValue, misValue, misValue, misValue, misValue, misValue, misValue, misValue, misValue, misValue, misValue, misValue, misValue, misValue); wsRefDocBudgetOwner = (Worksheet)wbDoc.Worksheets[2]; Range lRange = wsRefDocBudgetOwner.get_Range("B2", "B25"); var temp2 = wsRefDocBudgetOwner.QueryTables; var temp = temp2.Add(@"TEXT;d:\temp\config ssas.txt", lRange, Type.Missing); //temp.RefreshStyle = XlCellInsertionMode.xlInsertDeleteCells; //temp.RefreshOnFileOpen = true; wsRefDocBudgetOwner.get_Range("B1", "B1").Value2 = "Lgfdgast adsffdafadfads"; wbDoc.Save(); //wbDoc.SaveAs(flnmDoc2, misValue, misValue, misValue, misValue, misValue, XlSaveAsAccessMode.xlExclusive, // misValue, misValue, misValue, misValue, misValue); wbDoc.Close(Missing.Value, Missing.Value, Missing.Value); } finally { application.Quit(); }

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• CAB file for X86 and X64

  - by ramanakumar

  HI I have created a CAB file for an ActiveX component which is wrapper around a .Net Libray. Here the .Net Library is refering some third party components which are actually build in (X86 or X64) No Any CPU. So My Cab file should be intelligent enogh to install eigther X86 or X64 depending on the client ( Browser) I Know the change should be in the INF file. As i am new to thsi Interoperabilit technology. Please guide me in solving this problem. Thanking you.

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• Is it possible to interop with Thunderbird using C#?

  - by Jurily

  Here's the latest hurdle in my ongoing quest to automate my job: All email in the company goes through 4 different email adresses, switching randomly back and forth (with a note attached in the global share: please set "keep email on server") All logic related to email is contained in a nice big Thunderbird profile, which gets copied back and forth to new machines; this includes sorting invoices into 5 different "folders", the list of VIP adresses to send notifications, and the VIP level of those customers I only need the contents of those folders (the attachments, anyway) The question: is there a way to ask Thunderbird for those attachments and lists from C#? Alternatively, can Outlook be set up to synchronize with Thunderbird? Where do I start reading? Ditching Thunderbird is not an option right now, I need to keep up with changes to the VIP list. P.S. I will set up a real email server right after Monkey saves me enough time to convince people about it.

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• Troubleshooting a COM+ application deadlock

  - by Chris Karcher

  I'm trying to troubleshoot a COM+ application that deadlocks intermittently. The last time it locked up, I was able to take a usermode dump of the dllhost process and analyze it using WinDbg. After inspecting all the threads and locks, it all boils down to a critical section owned by this thread: ChildEBP RetAddr Args to Child 0deefd00 7c822114 77e6bb08 000004d4 00000000 ntdll!KiFastSystemCallRet 0deefd04 77e6bb08 000004d4 00000000 0deefd48 ntdll!ZwWaitForSingleObject+0xc 0deefd74 77e6ba72 000004d4 00002710 00000000 kernel32!WaitForSingleObjectEx+0xac 0deefd88 75bb22b9 000004d4 00002710 00000000 kernel32!WaitForSingleObject+0x12 0deeffb8 77e660b9 000a5cc0 00000000 00000000 comsvcs!PingThread+0xf6 0deeffec 00000000 75bb21f1 000a5cc0 00000000 kernel32!BaseThreadStart+0x34 The object it's waiting on is an event: 0:016> !handle 4d4 f Handle 000004d4 Type Event Attributes 0 GrantedAccess 0x1f0003: Delete,ReadControl,WriteDac,WriteOwner,Synch QueryState,ModifyState HandleCount 2 PointerCount 4 Name <none> No object specific information available As far as I can tell, the event never gets signaled, causing the thread to hang and hold up several other threads in the process. Does anyone have any suggestions for next steps in figuring out what's going on? Now, seeing as the method is called PingThread, is it possible that it's trying to ping another thread in the process that's already deadlocked? UPDATE This actually turned out to be a bug in the Oracle 10.2.0.1 client. Although, I'm still interested in ideas on how I could have figured this out without finding the bug in Oracle's bug database.

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• How do I create interface methods using .tlb types in VS C++?

  - by Steven

  Background: The .TLB file contains interfaces written in language 'X'. I don't have .h, .idl, .tlh, or any other header files - just the .TLB file. Language 'X' does not export compatible .h, .idl, etc. I use the VS wizard to add an ATL simple object to my ATL project. I want to add a method to the interface of my simple ATL object that uses one of the .TLB defined types for a parameter. // Something like the following in the .idl file: interface ISomeInterface : IUnknown { HRESULT SomeMethod([in] ITypeFromTLB* aVal); // ITypeFromTLB declared in .TLB file. }; How can I do this? I'm hoping for a wizard, or a line in the .idl interface declaration that would bring in the .tlb information. midl's include (no .tlb), import (no tlb), and importlib (library only) don't seem to provide a solution (I need proxy/stub to be working, so I cannot put this inside the library declaration with the importlib command). Thanks.

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• Consume a "WCF Service" in "Classical ASP" respectively in VB6

  - by Elmex

  Is there a simple way to consume a WCF Service from Classical ASP respectively in VB6 ? Is it possible to provide a WCF Service as a COM+ Service (component) ?

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• STAThread and Process output capture in c#

  - by alex

  Hi: This is a strange problem I encountered. I have an window application written in c# to do testing. It has a MDI parent form that is hosting a few children forms. One of the forms launch test cripts by creating processes and capture the scripts output to a text box. Another form open serial port and monitoring the status of the device I am working on(like a shell). If I ran both of them together, the output of the script seems only appear in the text box after the test is done. However, If I don't open the serial port form, the output of the script is captured in real time. Does anyone knows what's causing the problem? I notice the onDataReceived even handler for serial port form has a [STAThread] header to it. Will this cause the serial port thread having higher priority than other processes? Thanks in advance.

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• How to invoke client ActiveX via javascript

  - by Captain Kidd

  Hi I want to let server to invoke client ActiveX via javascript. The script work well as it run on my local system. Then I place it into Apache Server and it's malfunction. Script: <object id="lv_obj" classid = "CLSID:30A92485-94D2-4CBA-AC32-EF276B7F777B" CODEBASE="" ></OBJECT> try { document.all.lv_obj.Init("PCS_Tes"); } catch (err) { window.alert("????: " + err.message); } I guess the reason is script on server can't invoke user client ActiveX. If I need config something on Apache?

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• How do I render the scrollable regions of a canvas with IViewObject::Draw?

  - by nirvdrum

  Hi, I've been trying to render the entire canvas in an IWebBrowser2 control to a bitmap. IViewObject::Draw seems to be the most promising approach, but I can't get it to render anything that would requires a scroll to show. While I could automate the scrolling and stitch the images together, this would look weird with any fixed position elements. Is this even doable? Additionally, I've tried to set the controller's size to one that would allow the entire contents to display without needing to scroll, but Windows caps the max size to the current screen resolution, so that only gets me partially there. Any help would be much appreciated. I'm currently doing this in the context of Win7 and IE8, but I don't think that should matter much.

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• MIDL (Constant) References

  - by PrettyFlower

  Are there no constant references in MIDL method declarations???? eg. [id(1), helpstring("My Method")] HRESULT MyMethod( [in] IID & const rclsid ); for HRESULT MyMethod( IID const &rclsid );

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• Abstract Methods in "Product" - Factory Method C#

  - by Regina Foo

  I have a simple class library (COM+ service) written in C# to consume 5 web services: Add, Minus, Divide, Multiply and Compare. I've created the abstract product and abstract factory classes. The abstract product named WS's code: public abstract class WS { public abstract double Calculate(double a, double b); public abstract string Compare(double a, double b); } As you see, when one of the subclasses inherits WS, both methods must be overridden which might not be useful in some subclasses. E.g. Compare doesn't need Calculate() method. To instantiate a new CompareWS object, the client class will call the CreateWS() method which returns a WS object type. public class CompareWSFactory : WSFactory { public override WS CreateWS() { return new CompareWS(); } } But if Compare() is not defined as abstract in WS, the Compare() method cannot be invoked. This is only an example with two methods, but what if there are more methods? Is it stupid to define all the methods as abstract in the WS class? My question is: I want to define abstract methods that are common to all subclasses of WS whereas when the factory creates a WS object type, all the methods of the subclasses can be invoked (overridden methods of WS and also the methods in subclasses). How should I do this?

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• Temporarily save Word document changes

  - by willvv

  Hi I'm using Interop to create a "custom word editor", basically I've incorporated MS Word on my application and I allow users to edit a document and insert custom fields from a predefined list. I provide a "Preview" option to see how the document will appear when the data is added. The users can start editing a template on my application, and at any time they can hit preview and the preview should appear with the latest changes. I want the user to be able to preview the document without saving the changes, the problem is that when I invoke SaveAs() on the document (to create a temp file that I can use as the input for the preview generator), the editor opens the temp document. Is there a way to save a copy of the document being edited but keep the original (open) document with its changes unsaved? Thanks a lot

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